列式PLZ*Ratio
1) Ths scale of a map is 1:250000. The distance between citiesA and B on the map is 14.4cm.
a) Find the actual distance between the two cities in km.
b) What is the distance between the two cities on a map with a scale of 1cm:4km?
MATHS (20 FUN)
2007-10-28 2:19 am
回答 (3)
2007-10-28 2:26 am
✔ 最佳答案
a) The actual distance =14.4cm x 250000
=3600000cm
=36km
b) The distance
=36/4cm
=9cm
希望幫到你la~~
參考: me
2007-10-28 5:49 am
1a)
scale of map :
1:250000
= 1cm to 250000cm
= 1cm to 2.5km
The actual distance between the two cities are :
14.4 x 2.5
= 36 km
The actual distance between the two cities are 36km
1b)
scale of a map : 1cm to 4km
36km : 4km
= 9km
the distance between the two cities are 9km
scale of map :
1:250000
= 1cm to 250000cm
= 1cm to 2.5km
The actual distance between the two cities are :
14.4 x 2.5
= 36 km
The actual distance between the two cities are 36km
1b)
scale of a map : 1cm to 4km
36km : 4km
= 9km
the distance between the two cities are 9km
參考: me
2007-10-28 3:12 am
a) The actual distance between the two cities:
= 14.4 cm x 250 000
= 3 600 000 cm {convert from cm to km since 1km = 1000 m and 1m = 100 cm}
= 3 600 000 cm / 100 / 1000 {i.e. cross out five 0s}
= 36 km
b) The distance between the two cities on a map with a scale of 1cm:4km:
= 36 km / 4 km
= 9 cm
= 14.4 cm x 250 000
= 3 600 000 cm {convert from cm to km since 1km = 1000 m and 1m = 100 cm}
= 3 600 000 cm / 100 / 1000 {i.e. cross out five 0s}
= 36 km
b) The distance between the two cities on a map with a scale of 1cm:4km:
= 36 km / 4 km
= 9 cm
收錄日期: 2021-04-13 14:11:51
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071027000051KK03614